Architecture Evaluation of Main Corneal Incisions in Femtosecond Laser–Assisted Cataract Surgery by Optical Coherence Tomography Imaging

Sunday, April 19, 2015: 3:39 PM
Room 5B (San Diego Convention Center)
Mario Augusto Chaves, MD
Wilson T. Hida, MD, PhD
Aline Silva Guimaraes, MD
Celso Takashi Nakano, MD
Antonio F. P. Motta, MD
Michelle R. Gonçalves, MD
Milton R. Alves, MD, PhD
Eduardo S. Gonçalves, MD
Leonardo Costa Müller, MD
Sergio Colosio, MD
Rauber A. Bueno, MD

The aim of this study was to assess the stability and reliability of FLACS incision design measurements using a spectral domain optical coherence tomography (SD-OCT).

This study was conducted at the Renato Ambrósio Study Center – CEORA from Brasília Ophthalmologic Hospital - HOB, Brasília, Distrito Federal, Brazil. Prospective nonrandomized controlled clinical trial. Evaluation of 40 eyes of 20 Patients undergoing cataract surgery assisted by Femtosecond laser ( Alcon LenSx Inc.) with two different settings, either triplanar or blipanar corneal main incision, regardless of its position at the cornea. The OCT was performed after the delivery of the laser; immediately after phacoemulsification; in the day after; 7 days after and 30 days after postoperative. Data were compared and statistically analyzed.

The study is in its final phase. The OCT imaging was able to visualize the changes in corneal tissue. Despite the stress caused by manipulation of surgical instruments, preliminary results indicate good stability of the architecture of the incision and after statistical analysis of recent data the significance of will be determined.

The Optical coherence tomography imaging is a good method for evaluating the main corneal incisions delivered by femtosecond laser.